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Geometric Progression (GP) Quiz

MCQ: Sum of n terms of G.P is

1. n/2[2a+(n-1)d]
2. a(1-rn)/(1-r)
3. 2ab/(a+b)
4. a+b/2

B

Adjoint & inverse of square Matrix Quiz

MCQ: If AB exists, then ( AB )-1is

1. A-1 B-1
2. B-1 A-1
3. AB
4. None of Above

B

Solution of a Quadratic Equations Quiz

MCQ: If a > 0, then function ƒ(x) = a x² + bx + c has

1. maximum value
2. minimum value
3. constant value
4. positive value

B

Math Practice Test Quiz

MCQ: 120° =